Out of 109 children who suffer from migraines with aura, 50 percent also were diagnosed with the congenital heart defect patent foramen ovale. More commonly known as a hole-in-the-heart, this defect consists of a hole formed in the wall between the heart's two upper chambers which can allow unfiltered blood to bypass the lungs and then circulate through the body. The rate of PFO in those who experience migraines with aura was nearly double the rate in the general population. The result of this finding leads many to believe that migraines can be cured with surgery, such as a catheter device.